Improvement in cultivators



s. ROCKAFELLOW.

' Wheel Cultivtor, No: 39.703. Patented Aug..25 1863.-

U ITED STATES PATENT OFFICE.

SAMUEL ROOKAFELLOW, OF MUSOATINE, IOWA, ASSIGNOB/ TO HIM SELF AN JOSHUAW. HOOPS, OF SAME PLACE.

.IMPROVEMENT' IN CULTIVATORS.

Specification forming part of Letters Patent No. 39,703, dated August25, 1863. I

To all whom it may concern Be ituknown that I, SAMUEL ROCKAFELLOW, ofMuscatine, in the county of Muscatine and State of Iowa, have inventedcertain new and useful Improvements in Gorn-Plows and I do herebydeclare that the following is afull, clear, and exact descriptionthereof, reference being had to the accompanying drawing an d theletters andfigures marked thereon, which form raising or depressing theplowshares, easily manipulated by the driver, and also in a peculiararrangement of the beam to which theplowshares are attached, and in themannerin which the draft is applied to the machine.

To enable those skilled in the art to construct and use my improvedcorn'plow, I will now proceed to describe the same with particularity.

A A B B O 0 represent the mainframe of the corn-plow, which is supportedupon the axles of the wheels which pass beneath the beams U G, to whichthey are firmly attached. These axles terminate at the inner side of thesaid beams G G, leaving an open space longitudinally through the centerof the machine for the corn to pass through.

.E represents the drat't-pole,which is fastened to the rear cross-beam,A,by a boltor pin, allowing it to move horizontally, and is confined tothe front cross-beam, A, in aslot formed by the bar marked 6.

To the draft-pole, on each side thereof, are fastened the cords c c,which pass out laterally along A, around the pulleys marked a, or theirequivalents, and extend back to the rear of the machine, where they passthrough staples or loops attached to the cross-beam A, then go forwardand are fastened to the levers I I.

- These levers I I are attached at the lower ends thereof by ajoint tothe longitudinal beams U G, and are provided at or near the upper endswith a step or rest-for the feet of the driver.

By this arrangement the driver, seated in the seat S, the draftpolebeing kept rigid by its attachment to the horses, by pressing with hisfoot either of the levers I, as may be desirable,

can readily move the front end of the plow to the right or left, as thecurves or irregularities in the row may require, thus adaptingthe plowsto any curves or irregularities in the rows ina simple, easy, andperfect manner.

Near each end of the frontcross-beam, A, are

whereby thehorses are attached to the machine.

. F F are bars or levers, the front ends whereof are fixed in slots outin the uprights B B for that purpose. These levers are connected to thebeams I) D, to which the plowshares are attached, by the rods marked H,as shown in the drawing, and to the rear ends of each of these levers IF is fastened the curved handle or bail marked G. The object of thislast-described arrangement is to' enable the driver while occupying theseatS toreadily grasp the handle G with his hand and to raise or depressthe plows L L whenever it is desirable.

I) D represent the beams to which the plowshares are attached, and areof a peculiar configuration, as shown in -the drawing. These beams arebroad at or near the center or middle part, so as to obviate thenecessity of having two beams on each side of the machine and attachingone share to each beam, as is ordinarily done. The rear ends of thebeams D D are made fast to the lower ends of the uprights B B, as isseen in the drawing, while the front ends of the said beams are movablevertically in the slots 1) in the lower ends of B B, made for thatpurpose, and thus the raising and lowering of the plows L L areefi'ectedby raising and lowering the front ends of the beams D'D insteadoftherear ends. The object of this arrangement is to enable the insideplows,which run next to the row of corn, to be placed near the front endof the machine, so that the driver may be able to see them at all times,for ifthe said inside plows, L, should be placed near the rear end,directly beneath the driver, he would be unable to see them and shouldthey be placed, as desired, near the front end, while at the same timethe beams D D should be raised and depressed at the ren-r end, it wouldbeimpossible to raise theplows to a sufficient height.

Having now described my several improvements, I will now proceed to sumup what I claim as my invention a 1. The combination of the cords c 0with the draft-poleE, pivoted at its rear end to the crossbar A, and thefoot-lerers I I, arranged, constructed, and operating as and for thepurposes herein delineated and set forth.

2. The combination of the levers F and the rods H with the curved handleGr, when constructed, arranged, and operatin gas herein set forth anddescribed.

3. The combination and arrangementof the beams D D, adjustable at theirfront ends,with the rods H, the levers F, and curved handle G, as andfor the purposes herein set forth and sho wn. 1

SAMUEL ROOKAFELLOW. Witnesses:

Z. WASHBURN, J EssE KNoUsE.

